Hach-Lange BODTRAK II: Respirometric Biochemical Oxygen Demand (BOD) - Manual (Page 13)

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Section 4 Operation
4.1 Operational controls
The BODTrak™ II operator controls are shown in Figure 2 .
Figure 2 Operational controls
1 Display 4 ON/OFF keys 1
1 The ON/OFF keys start and stop a test. They do not power the instrument on and off.
2 Channel selection keys 5 Power indicator
3 Arrow keys